Philippe Gaultier • 11/10/2024

Way too many ways to wait on a child process with a timeout

The article details the creation of a Unix command-line tool for retrying commands with exponential backoff and timeouts. It explores over nine different technical approaches for waiting on a child process with a timeout, covering signals, file descriptors, and system APIs like sigsuspend, signalfd, kqueue, and io_uring. It's a systems programming deep dive relevant to developers working on Linux, BSD, and macOS.

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#linux #unix #Signals